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authorUnknwon <u@gogs.io>2017-02-09 19:48:13 -0500
committerUnknwon <u@gogs.io>2017-02-09 19:48:13 -0500
commit2fd69f13d9599a6c58b47225565163fd7d87889f (patch)
treefd19e868e1c2e95a5fb83a268f6e393669d6ee79 /vendor/github.com/go-xorm/core/index.go
parenteb66060cd7b9bce996b1d75ae80ce1ef31d5ce62 (diff)
vendor: check in vendors
Bye bye glide...
Diffstat (limited to 'vendor/github.com/go-xorm/core/index.go')
-rw-r--r--vendor/github.com/go-xorm/core/index.go61
1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/github.com/go-xorm/core/index.go b/vendor/github.com/go-xorm/core/index.go
new file mode 100644
index 00000000..73b95175
--- /dev/null
+++ b/vendor/github.com/go-xorm/core/index.go
@@ -0,0 +1,61 @@
+package core
+
+import (
+ "fmt"
+ "sort"
+ "strings"
+)
+
+const (
+ IndexType = iota + 1
+ UniqueType
+)
+
+// database index
+type Index struct {
+ IsRegular bool
+ Name string
+ Type int
+ Cols []string
+}
+
+func (index *Index) XName(tableName string) string {
+ if !strings.HasPrefix(index.Name, "UQE_") &&
+ !strings.HasPrefix(index.Name, "IDX_") {
+ if index.Type == UniqueType {
+ return fmt.Sprintf("UQE_%v_%v", tableName, index.Name)
+ }
+ return fmt.Sprintf("IDX_%v_%v", tableName, index.Name)
+ }
+ return index.Name
+}
+
+// add columns which will be composite index
+func (index *Index) AddColumn(cols ...string) {
+ for _, col := range cols {
+ index.Cols = append(index.Cols, col)
+ }
+}
+
+func (index *Index) Equal(dst *Index) bool {
+ if index.Type != dst.Type {
+ return false
+ }
+ if len(index.Cols) != len(dst.Cols) {
+ return false
+ }
+ sort.StringSlice(index.Cols).Sort()
+ sort.StringSlice(dst.Cols).Sort()
+
+ for i := 0; i < len(index.Cols); i++ {
+ if index.Cols[i] != dst.Cols[i] {
+ return false
+ }
+ }
+ return true
+}
+
+// new an index
+func NewIndex(name string, indexType int) *Index {
+ return &Index{true, name, indexType, make([]string, 0)}
+}